This 36-inch ignition sensor lead wire is designed specifically for Burnham Alpine and Burnham ES2 series boilers

Always verify the schematic on the unit's access panel to ensure the R621 designation matches your specific application

head gasket

Smith parts ensures that the electrical resistance and mounting clearances meet original manufacturer tolerances for Lochinvar heating systems

York 025-37805-000 Connector 321702-401 This 36-inch ignition sensor leadThe York 025 37805 000 Connector is a critical industrial component designed to meet the DIN 43650 standard, ensuring high integrity electrical interfaces in demanding HVACR environments. This 4 pin DIN connector is engineered for a secure fit on solenoid valves, pressure switches, and sensors common in York chillers and air handling units. Its robust housing provides superior protection against moisture and debris, maintaining signal continuity in